Question

□ ABCD is a parallelogram. The ratio of <A and <B of this parallelogram is 5:4. Find the measure of <B?​

Answer 1

Step-by-step explanation:

Quadrilateral ABCD is a parallelogram.

Let the measure of ZA and B be

5x and 4x, respectively.

Now,

ZA+B= 180°

(Adjacent angles of a parallelogram are supplementary)

.. 5x + 4x = 180°

→ 9x = 180°

X

Chapter 1: Datic and Proportion Draction Sat 1 2 [Dann 621

AO0

⇒ x = 20°

:: Measure of ZB = 4x = 4 x 20° = 80°

Thus, the measure of ZB is 80°.

ANSWER IS IN PHOTO

Answer 2

Answer:

Thanks for your question...

Your required answer :

Given :

• Ratio of Angle A and Angle B = 5 : 4

• Let the angle A = 5x and Angle b = 4x

• Angle A + Angle B = 180° { Interior angles of llgm }
• 5x + 4x = 180°
• 9x = 180°
• $x \: = \frac{180}{9}$
• x = 20°
• Angle A = 20°

As the angle B is 4x°

• So angle B = 4 × 20°
• Angle B = 80°

Brainliest Please