Question 13

An angle is 10° more than its complement. Find the greater angle.

Solution

complementary angles have a sum of 90

let

A + B = 90

Now if A = x than B = x + 10

so x + x+ 10 = 90

2x = 80

x = 40

so the greater angle is 40 + 10 = 50

option C is the answer


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