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Step-5

Title: Angles

Grade: 10-a Lesson: S1-L2

Explanation:

Step	Type	Explanation	Answer
1	Problem	If the sum of 4 times of an angle and 3 is 1223. Find the type of an angle.
2	Step	Given	4x , 3 and angle = 1223
3	Step	Now substitute	4x + 3 = 1223
4	Step	After simplication	4x = 1220
5	Step	After simplication	x = \$(\cancel(1220)^305) /(\cancel(4)^1)\$
6	Step	After simplication	x = 305°
7	Step	Type of angle	Since 305° is greater than 180° but less than 360°, the type of angle is reflex angle.
8		Answer	The reflex angle = 305°

Step

Type

Explanation

Answer

Problem

If the sum of 4 times of an angle and 3 is 1223. Find the type of an angle.

Step

Given

4x , 3 and angle = 1223

Step

Now substitute

4x + 3 = 1223

Step

After simplication

4x = 1220

Step

After simplication

x = \$(\cancel(1220)^305) /(\cancel(4)^1)\$

Step

After simplication

x = 305°

Step

Type of angle

Since 305° is greater than 180° but less than 360°, the type of angle is reflex angle.

Answer

The reflex angle = 305°