Question

Find the unknown marked angles in each of the following figures.....plz give step by step answer......

Answer 1

Answer:

Angle B = 113 ( w.k.t. they are alternative angles)

also angle B= angle F = 113 ( vertically opposite angles)

B+g = 180 { linear pair}

113+g = 180

g=180-113

g= 67

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Answer 2

Hi,

Here is your answer

Given:

ED parallel to FC

Angle C=113°

To Find:

Angle g

Angle f

Solution:

Angle f=Angle C(Alternate interior angles are equal)

Hence angle f=113°

Angle g=180-Angle f(Linear pairs are supplementary)

Angle g=180-113

Angle g=67°

Notes:

When a transversal cuts a pair of parellel lines,

• Co-interior angles are supplementary.
• Vertically opposite angles are equal
• Alternate interior angles are equal
• Linear pairs are supplementary

Hope this help you.