Question

Abcd is a rhombus.if angle acb =80degree,then find the measure of angle adb

Answer 1

Answer:

100°

Step-by-step explanation:

Given

angle ACB= 80°

ACB+ADB = 180° { Adjecent angle are supplemtry}

80°+ADB= 180°

ADB = 180-80

ADB = 100°

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Answer 2

Given:

Abcd is a rhombus. if angle acb =80degree.

To Find:

The measure of angle ADB.

Solution:

To find the measure of angle ADB we will follow the following steps:

As we know, the sum of supplementary angles of the quadrilateral is equal to 180°.

Rhombus is a type of quadrilateral.

ACB and ADB are opposite angles so, their sum is equal to 180°.

angle ADB = 180° - ACB

angle ADB = 180° - 80

angle ADB = 100°

Henceforth, the measure of angle ADB is 100°.