Question

Construct a triangle PQR in which QR= 4.8cm, angle Q= 45, PR-RQ= 2.1cm
Step by step explanation. Thank you

Answer 1

Answer:

D and E are points on the sides AB and AC respectively of a R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - TrianglesABC such that DE || BC.

R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles

(i) If AD = 3.6 cm, AB = 10 cm and AE = 4.5 cm, find EC and AC

(ii) If AB = 13.3 cm, AC = 11.9 cm and EC = 5.1 cm, find AD

(iii) If R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles and AC = 6.6 cm, find AE

(iv) If R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles and EC = 3.5 cm, find AE

Solution 1

(i) In R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - TrianglesABC, DE || BC, AD = 3.6 cm, AB = 10 cm, AE = 4.5 cm

R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles  

Hence, AC = 12.5 cm and EC = 8cm

     (ii) In R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - TrianglesABC, DE || BC, AB = 13.3 cm, AC = 11.9 cm and EC = 5.1 cm

R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles  

Hence, AD = 7.7 cm

(iii) In R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - TrianglesABC, DE || BC, AC = 6.6 cm, R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles

?R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles

Hence, AE = 2.4 cm

(iv) In R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - TrianglesABC, DE || BC, Given R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles

 

R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles  

Hence AE = 4 cm

Question 2

D and E are points on the sides AB and AC respectively of a R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - TrianglesABC such that DE || BC. Find the value of x, when

R-s-aggarwal-and-v-aggarwal Solutions Cbse Class 10 Mathematics Chapter - Triangles

(i) AD= x cm, DB= (x - 2) cm, AE = (x + 2) cm and EC = (x - 1) cm

(ii) AD = 4 cm, DB = (x - 4) cm, AE = 8 cm and E

Step-by-step explanation:

Answer 2

See this is a example but with different measures you can make with your measure but first make rough diagram

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