Question

plzz answer this all

Answer 1

4. sum of triangle is 180°
by ASP A+B+C=180
50+BC=180
BC= 180-50
=130°




5..p= 4×S
26=4×S
26/4=S
4.5 cm
area of square is s×s
4.5×4.5=20.25 cm^2

Answer 2

4] Given ,

∆ ABC Is An Isosceles Triangle .

Angle A = 50°

Let Angles B And C Be x° = 2x
[ In An Isosceles Triangle Two Side Are Equal ]

As We Know Sum Of The Angles In A Triangle = 180°

Therefore ,

Angle A + Angle B + Angle C = 180°
[ Substitute The Values ]

➡ 50 +2x = 180

➡ 2x = 180-50

➡ 2x = 130

➡ x = 130/2

➡ x = 65°

Therefore The Three Angles Are 50° , 65° , 65° .


5] Given ,

Perimeter Of The Square = 26 cm

Perimeter Of The Square = 4a

26 = 4a

a = 26/4

a = 6.5 cm

Therefore Side Of The Square = 6.5 Cm

Area Of The Square = s×s

Side Of The Square = 6.5 Cm

➡ 6.5 × 6.5

➡42.25 sq.cm

Therefore Area Of The Square = 42.25 sq.cm