perimeter of an isoceles triangle is 150. if its unequal side is 70m. find the isoceles triangle
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Answered by
9
Given: Perimeter of an isosceles triangle is 150 m; unequal side is 70 m.
To find: The sides of the triangle.
Answer:
- An isosceles triangle has 2 equal sides.
Let one of the equal sides be x. The other will be x as well.
According to the question,
Perimeter = 70 + x + x
150 = 70 + x + x.
150 = 70 + 2x
150 - 70 = 2x
80 = 2x
x = 80/2 = 40
Therefore, the two equal sides are of 40 m each.
Answered by
19
ANSWER:-
Given:
Perimeter of an Isosceles Δ is 150m.
If its unequal is 70m.
To find:
The Isosceles triangle.
Explanation:
Let the equal sides of equilateral Δ be R m.
We know that perimeter of Δ : Sum of all sides. [Side +Side+Side]
We have,
- Perimeter of isosceles Δ= 150m.
- Isosceles triangle means two sides are same or equal.
⇒ R + R + 70m = 150m
⇒ 2R + 70m= 150m
⇒ 2R = 150m- 70m
⇒ 2R = 80m
⇒ R= 80/2
⇒ R= 40m
Thus,
∴The side of an isosceles triangle is,R= 40m
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