4. Two adjacent angles of a rhombus are in the ratio 4:5. Find the measure
angles.
5. The weights (in kg) of 15 students of a class are:
38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47
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Answer:
A = 80 B = 100 C = 80 D = 100
Step-by-step explanation:
ADJACENT ANGLES OF RHOMBUS ARE SUPPLEMENTARY
THEREFORE,
A + B = 180
A : B = 4 : 5
LET THE COMMON MULTIPLE BE X
A = 4X
B = 5X
4X + 5X = 180
9X = 180
X = +180/ 9
X = 20
SUBSTITUE VALUE OF X AS 20
A = 80
B = 100
WE KNOW,
OPPOSITE ANGLES OF RHOMBUS ARE CONGRUENT
THEREFORE,
C = 80
D = 100
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