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24 Cards in this Set
- Front
- Back
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HOW MANY DEGREES IN A RGHT ANGLE
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90
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HOW MANY DEGREES IN A STRAIGHT LINE
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180
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THERE ARE HOW MANY DEGREES INN A TRIANGLE
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180
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THERE ARE ______IN A CIRCLE
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360
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A FOUR SIDED FIGURE HAS HOW MANY DEGREES
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360
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WHEN TWO LINES INTERSECT ANGLES ACROSS FROM EACH OTHER (VERTICLE ANGLES) ARE
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EQUAL
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AREA OF A TRIANGLE FORMULA
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1/2 BxH
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THE PERIMETER OF ANY FIGURE IS
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SUM OF ITS SIDES
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ANGELS GREATER THAN 0 BUT LESS THAN 90 DEGREES ARE CALLED?
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ACUTE ANGLES
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ANGLES EQUAL TO 90 DEGREES ARE CALLED
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RIGHT ANGELS
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ANGELS THAT SUM UP TO 90 DEGREES ARE CALLED
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COMPLEMENTARY ANGLES.
THINK OF C FOR CORNER (THE ANGLE FORMS A 90 DEGREE CORNER ANGLE)AND C FOR COMPLEMENTARY |
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AN ANGLE THAT IS GREATER THAN 90 DEGREES BUT LESS THAN 180 IS CALLED AN
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OBTUSE ANGLE.
THINK OF OBTUSE AS OBESE(OR FAT)ANGLE |
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AN ANGLE THAT MEASURE EXACTLY 180 DEGREES IS CALLED A
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STRAIGHT ANGLE
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ANGLES THAT SUM UP TO 180 DEGREES ARE CALLED
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SUPPLEMENTARY
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HINTS
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THINK OF S FOR STRAIGHT ANGELS AND S FOR SUPPLEMANTARY ANGLES
BE CAREFUL NOT TO CONFUSE COMPLEMENTARY (C FOR COMPLEMANTARY/CORNER) |
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HINTS
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IF YOU'RE LIKELY TO GET COMPLEMENTARY AND SUPP ANGLES CONFUSED, THINK OF ALPHABET--C COMES BEFORE S AND 90 COMES BEFORE 180
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ANGLES AROUND A POINT TOTAL
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360
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IN ANGLES AROUND A POINT
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FIRST DEFINE THE POINT FORMED WHERE THE LINES CROSS.
THEN ANGLES THAT ARE OPPOSITE EACH OTHER HAVE EQUAL MEASURES AND ARE CALLED VERTICAL ANGLES |
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NOTE THAT ALL ODD AND EVEN NUMBERED ANGLES ARE EQUAL. DO NOT ZIG ZAG
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EX.
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A TRIANGLE WITH 3 EQ SIDES AND 3 EQ ANGLES IS CALLED
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EQUILATERAL
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A TRIANGLE WITH 2 EQ SIDES AND ANGLES IS CALLED A
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ISOSCELES
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ANGELS OPPEOSITE EQUAL ASIDES IN A ISOSCELES TRIANGLE ARE
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EQUAL
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IN ANY TYPE OF TRIANGLE, THE SUM OF THE INTERIOR ANGLES IS
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180
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THE MEASURE OF AN EXTERIOR ANGLE OF A TRIANGLE IS EQUAL
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TO THE SUM OF THE TWO REMOTE INTERIOR ANGLES
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