Question

4 If P-Q-R, I (PR) = 7cm, 1(PQ) = 4 cm then, (QR) =
***......cm​

Answer 1

Answer:

7

Step-by-step explanation:

(PR)=7=>(2)(3.5)=7

PUT THE VALUE OF P IN 2ND EQUATION

(PQ)=4=>(2)(2)=4

PUT THE KNOWN VALUES OF Q AND R IN 3RD EQUATION

(QR)=?=>(2)(3.5)=7.5

ANSWER