*The equal sides of an isosceles triangle are 5 units less than twice the third side. What is the length of equal sides of the triangle, provided its perimeter is 75 units?*
1️⃣ 34 units
2️⃣ 29 units
3️⃣ 14 units
4️⃣ 43 units
Answers
Answered by
0
Answer:
hey here is your answer
so pls mark it as brainliest
Step-by-step explanation:
now for given isoceles triangle let the two equal sides be a and third side ie its base be b
so now according to given condition given condition
a=2b-5 (1)
so now we know that
perimter of isosceles triangle=2a+b
so thus according to the second condition
2a+b=75 (2)
substitute value of a from (1) in (2)
we get
2a+b=75
ie 2(2b-5)+b=75
ie 4b-10+b=75
so 5b=85
ie b=17 units
substitute value of b in any of two equations
we get
a=29 units
hence the length of equal sides of above isosceles triangle are 29 units each
thus option b ie 29 units is ryt answer
Similar questions