Question

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Answer 1

Step-by-step explanation:

Hope you get the answer

Answer 2

Answer:

6. 56cm

7. 30 mm

Step-by-step explanation:

6. perimeter of isosceles tringle = 154cm

base = 42cm

we know that other two sides are equal

so, let the sides be x

now,

       154 = x + x +42

        154 - 42 = 2x

        112 = 2x

         112/2 = x

         56cm  = x    

equal sides are of 56cm    ans

7. given,

AB = 45mm

BC = 10cm4mm(1cm = 10mm)

        so, 10 * 10 +4 =104mm

CD = 5cm6mm

         5 * 10 + 6 = 56 mm

DE = 35mm

so ,45mm +104mm+ 56mm+ 35mm =140mm

Now, primeter =170mm

AE = 170 mm -140mm

    = 30mm      ans