if 1 side of triangle is 4 cm and other side of triangle is 3 cm and the angle is - Maths - Solution of Triangles

Question

if 1 side of triangle is 4 cm and other side of triangle is 3 cm
and the angle is 30 degfor 1 triangle for second triangle Lleis 120
degand it is not right angled tringleand for both triangles sides
are same

Ishwarmani · Accepted Answer

Dear
Student,
Please find
below the solution to the asked query:

For the triangle with two sides, a=4 cm and b=3 cm and angle between them, θ=30°So, the third side, c=a2+b2-2abcosθ=42+32-2×4×3cos30°=16+9-24×32=25-123≈4
21 cmFor other triangle with two sides, a=4 cm and b=3 cm and angle between them, θ=120°So, the third side, c=a2+b2-2abcosθ=42+32-2×4×3cos120°=16+9+24×12=37≈6
08 cm

Regards

if 1 side of triangle is 4 cm and other side of triangle is 3 cm and the angle is 30 degfor 1 triangle for second triangle Lleis 120 degand it is not right angled tringleand for both triangles sides are same