Can someone help me solve this question?
1 Answer
Feb 16, 2018
Explanation:
"given two similar figures then "
• "linear ratio "=a:b
• " area ratio "=a^2:b^2
• " volume ratio "=a^3:b^3
"here area ratio "=49:16
rArr"linear ratio "=sqrt49:sqrt16=7:4
rArr"larger part of ratio"/"smaller part of ratio"="larger perimeter"/"smaller perimeter"
"we want the smaller perimeter (p)"
rArr7/4=22/plarrcolor(blue)"cross multiply"
rArr7p=4xx22
rArrp=(4xx22)/7~~12.57" cm to 2 dec. places"