Math, asked by manaswita21, 10 months ago

pls solve the question 3 and 4
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Answers

Answered by biprajitsuklabaidya7
1

Two adjacent angles of a parallelogram are equal

(5x-5)=(10x-35)

5x-10x = -35+5

-5x= -30

X=6

Both are 25

Since rectangles are at right angles

Therefore by pythagoras rule

(Diag)^2= (10)^2+(24)^2

= 100 +576

=676

Diag = 26

Answered by niral
1

Answer:

Step-by-step explanation:

3.ans-The sum of two consecutive angles of a parallelogram is equal to 180.

- Therefore. you have an equation

- (5x-5) + (10x+35) = 180.

-5x+10x-5+35=180

-15x+30=180

- 15x=180-30

- 15x=150

- x=150/15

- x=10

- Then calculate the angles 5x-5 and 10x+35.

- 5x-5 = 5*10-5 = 45

- 10x+35 = 10*10+35 = 135

- 45:135

- 45÷5/135÷5 = 9/27

- 9÷9/27÷9

- 1/3 = 1:3

- (a) 1:3

4.ans- By Pythagoras theorem

→ H²=l²× b²

→ 24.24 + 10.10

→ 576+100

→ H²=676

→ H= √676

→ H = 26

⇒ Therefore  Diagonal of rectangle is 26 cm.


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