RBSE Solutions for Class 7 Maths Chapter 10 Practical Geometry Ex 10.5

Rajasthan Board RBSE Solutions for Class 7 Maths Chapter 10 Practical Geometry Ex 10.5 Textbook Exercise Questions and Answers.

RBSE Class 7 Maths Solutions Chapter 10 Practical Geometry Ex 10.5

Question 1.
Construct the right-angled ΔPQR, where m∠Q - 90°, QR = 8 cm and PR = 10 cm. 
Answer:
Steps of construction :

1. Draw a line segment QR = 8 cm.
2. At Q, construct ∠RQX = 90°.
3. With centre at R and radius 10 cm, draw an arc to cut QX at P.
4. Join PR.

Thus, ΔPQR is the required right-angled triangle.

Question 2. 
Construct a right-angled triangle whose hypotenuse is 6 cm long and one of the legs is 4 cm long.
Answer:
Steps of construction :

1. Draw a line segment MN = 4 cm.
2. Construct ∠NMX = 90° at M.
3. With centre at Wand radius 6 cm, draw an arc to cut MX at L.
4. Join LN.

Thus, the ΔLMN is the required right-angled triangle.

Question 3.
Construct an isosceles right¬angled triangle ABC, where m∠ACB - 90° and AC = 6 cm.
Answer:
Steps of construction :

1. Draw a line segment AC = 6 cm.
2. At C, construct ∠ACX = 90°.
3. With centre C and radius AC = 6 cm, draw an arc to cut CX at B.
4. Join BA.

Thus, ΔABC is the required isosceles right-angled triangle.