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| 1. |
Find the perimeter of a rectangle whose length is 30 m and a diagonal measure 34 m |
| Answer» 480 cm²Step-by-step explanation:LENGTH of a RECTANGLE = 30 cm Measure of ONE of its diagonals = 34 cm So, We can get the breadth by PYTHAGORAS THEOREM. (Breadth)² = (Diagonal)² - (Length)² (Breadth)² = (34)² - (30)² (Breadth)² = 1156 - 900 (Breadth)² = 256 Breadth = √256 Breadth = 16 cm So, Perimeter of the rectangle = 2(Length + Breadth). = [ 2(30 + 16) ] cm = [2× 46] cm = 92 cm Area of the rectangle = Length × Breadth = (30×16) cm² = 480 cm² | |