2 years ago

Triangle and polygon practice, help please!! Even just with one of them!

Mathematics

1 answer:

deff fn [24]2 years ago

8 0

Step-by-step explanation:

For question no. 3

Since we are aware that measure of the sum of all the three interior angles of a triangle is 180°.

$135 \degree + 25\degree +( 2x + 2)\degree = 180 \degree \\ \\ \therefore \: 2x\degree = 180 \degree - 152 \degree \\ \\ \therefore \: 2x\degree = 28 \degree \\ \\ \therefore \: x\degree = \frac{28 \degree}{2} \\ \\ \therefore \: x = 14$

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