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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Area=90sq m ratio of base and height = 4:5 let base be 4x then height=5x Area =1/2×base×height 90=1/2×4x×5x 90×2=20x^2 180=20x^2 x^2=180/20 x^2=9 x=√9 x=3 So,base=4x=4×3 =12m height=5×3 =15m Hope it was helpful plzzz mark as brainliest

Area = 1/2 x b x h let b = 4n and h = 5n so area = 1/2 x 4n x 5n ⇒ 90 = 1/2 x 20n² ⇒20n² = 90 x 2 ⇒n² = 180 / 20 ⇒n = √9 ⇒n = 3cm so base = 4 x 3 = 12 cm and height = 5 x 3= 15 cm