In a triangle the sides are 4 cm, 5 cm and 4 cm. One of the base angle is 80°. Find the measure of the apex angel.

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answerhappygod
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In a triangle the sides are 4 cm, 5 cm and 4 cm. One of the base angle is 80°. Find the measure of the apex angel.

Post by answerhappygod »

a) 30°
b) 40°
c) 20°
d) 10°
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