Question

Draw a triangle abc in which angle a =80 degree angle b = 80 degree and bc = 6.4 cm.

Answer 1

Answer:

in scale first

Step-by-step explanation:

in scale first draw a line 6.4 cm and in protector see the correct line of a side 80 degree and b side again u draw 80° and you make like a triangle. I think u can understand. THANK YOU

Answer 2

ABC  is the required triangle .

Step-by-step explanation:

steps :

(1)Draw a base line BC = 6.4 cm

(2) make an angle of 80° from B .

(3)now , we know that sum of all the angles of the triangle is 180°

therefore,

$\angle A +\angle B + \angle C = 180$

80+80 + C = 180

160 +C =180

$\angle C = 180-160$

$\angle C = 20$

(4) now, make an angle of 20° from C .

(5)let the both lines meet at point A .

hence ,

ABC  is the required triangle .

#Learn more:

Construct a angle ABC in which angle A = 60 degree. angle B= 50 degree and AB= 6.4 CM.

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