Question

w Maths-7
the ratio 2:3:4. Find their degree measure
uigies of a triangle are (10x - 5), (15x-10) and (25x -51. Find their degree
measure
16. The vertex angle of an isosceles triangles is 70°. Find the other two angles.
17. In a triangle, the exterior angle is 110° and the interior opposite angles are equal. Find
their degree measure and name the triangle type.
18. In the adjoining figure, find
2 EAB+ ABC + Z BCD + ZCDE + 2 DEA.
19. In an isosceles triangle, the vertex angle is of each of the equal to
angles. Find the angles of the triangle.
1 th
20
the Ab
20. In a right-angled triangle, one of the acute angles is 3rd of
other. Find the angles of the triangle.
21. The interior opposite angles of an exterior angle are in ratio 3:4 and the exterior angle
is 140°. Find the three angles of the triangle.
sosceles Triangle Property
Ve know that isosceles triangle is the triangle which has two
qual sides in the figure, AB = AC​

Answer 1

Answer:

10x-5+15x-10+25x51=180

50x-66=180

50x=180+66

50x=246

x=246÷50

Step-by-step explanation:

so add each each equation by using x value