An umbrella is made by stitching 10 triangular pieces of cloth of two

1.	An umbrella is made by stitching 10 triangular pieces of cloth of two different colours ,each piece measuring 20cm,50 cm and 50 cm.How much cloth of eachbcolouris required for the umbrella
Answer» Step-by-step explanation: there are 10 triangles. Let 5 are BLUE and 5 are yellow. AREA of each clothes = 5×(area of 1triangle) a=50cm b=20cm c=50cm s=a+b+c÷2=50+20+50÷2=60cm area of triangle = $\sqrt{s(s - a)(s - b)(s - c)}$ $\sqrt{60(60 - 50)(60 - 20)(60 - 50)}$ $\sqrt{60 \times (10) \times (40) \times (10)}$ $\sqrt{6 \times 4 \times (10 { {}^{} }^{4} })$ $\sqrt{6 \times( 2 {}^{2} } )\times( 10 {}^{4} )$ $\sqrt{6 \times } \sqrt{2 {}^{2} } \times \sqrt{10 {}^{4} }$ $\sqrt{6} \times 2 \times 10 {}^{2}$ $200 \sqrt{6}$