Question

A triangle ABC , BC = 6.5 , angleB = 30°, angleA= 105° and angle C= 55°, then find the Area of triangle ABC​

Answer 1

Answer:

Δ ABC is constructed

Step-by-step explanation:

BC =6.5cm,∠B=30°, ∠A=105°

∠A + ∠B + ∠C = 180°

=> 105° + 30° + ∠C = 180°

=> ∠C = 45°

Step 1 : Draw line segment BC = 6.5 cm using ruler

Step 2 : Draw an angle of 30° at B using protector

Step 3 : Draw an angle of 45° at C using protector

Step 4 : Find intersection point A of both angles

Step 5 : Join AB & AC

Δ ABC is constructed

Find Bisector of BC at point D

then find bisector of CD at E

now BE = (3/4)BC

Now in step 1 , take length = BE

and repeat the step from 2 to 5

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Answer 2

Answer:

Sum Of All Traingles Are 180degree

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