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Chapter 3: Q17. (page 114)

In the diagram AB鈫�bisects鈭�DHF, AB鈫�鈯�GH炉, AB鈫�鈭�CD鈫�and m鈭�AHD=60鈭�.Find the measure of each angle.

鈭�GHB

Short Answer

Expert verified

The angle鈭�GHBis 90鈭�.

Step by step solution

01

Step 1. Observe the diagram.

Here, 鈭�AHD=60掳, AB鈫�鈯�GH炉, AB鈫�鈭�CD鈫� and AB鈫� bisects 鈭�DHF .

02

Step 2. Show the calculation.

From the figure,

AB鈫�鈯�GH炉

Two perpendicular lines make an angle of 90掳.

Hence the angle鈭�GHB=90掳.

03

Step 3. State the conclusion.

Therefore, 鈭�GHB=90掳.

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