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Step-2

Title: Angles

Grade: 10-a Lesson: S1-L2

Explanation:

Step	Type	Explanation	Answer
1	Problem	Find the missing acute angle in the given figure. $2$
2	Step	Given	M = 71° and O = 45° a = !
3	Step	sum of all acute angles = 180°	180 = 71 + 45 + a
4	Step	Find the missing angle a	180 = 116 +a
5	Step	After simplication	a = 64°
6		Answer	a = 64°

Step

Type

Explanation

Answer

Problem

Find the missing acute angle in the given figure.
$2$

Step

Given

M = 71° and O = 45° a = !

Step

sum of all acute angles = 180°

180 = 71 + 45 + a

Step

Find the missing angle a

180 = 116 +a

Step

After simplication

a = 64°

Answer

a = 64°