Engineering Board Exam Reviewer · Triangles · easy
The angles of a triangle are in the ratio 2:3:4. Find the largest angle.
- 80°
- 90°
- 100°
- 70°
Answer
A. 80°
Solution
The parts sum to 9: largest =4×180°/9=80°.
More Triangles questions
- In a triangle, one angle is 40° and another is 65°. Find the exterior angle at the third vertex.
- An isosceles triangle has a vertex angle of 50°. Find each base angle.
- Find the length of the hypotenuse of a right triangle with legs 9 and 12.
- Find the area of an equilateral triangle with side length 10 cm.
- A triangle has sides 7, 8, and 9. Find its area using Heron's formula.
- In triangle ABC, angle A=50° and angle B=70°. Find angle C and classify the triangle as acute, right, or obtuse.
- The base of an isosceles triangle is 12 cm and each of the two equal sides is 10 cm. Find the height (altitude to the base).