CBSE Class 9 Perimeter and Area — practice questions
32 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 9 Perimeter and Area in the app →The total length around the border of a closed shape is called its:The perimeter of a rectangle with length a and width b is:The Greek letter that represents the ratio of a circle's circumference to its diameter is:What is the perimeter of an equilateral triangle of side 7 cm?The figure shows a labelled rectangle with length L and width W.
![Rectangle diagram (Wikimedia Commons, CC BThe circumference of a circle of radius 7 cm (use π ≈ 22/7):The area of a rectangle of length 12 cm and width 5 cm is:The figure shows a circle with radius r and diameter d marked.
![Circle with radius and diameter (Wikimedia CAround 263 CE, the Chinese mathematician Liu Hui's 'circle-cutting method' approximated π by inscribing polygoThe area of a triangle with base b and height h is:A square garden of side 20 m is surrounded by a path of uniform width 1 m on the outside. The AREA of the pathTwo circles have radii in the ratio 2:3. The ratio of their CIRCUMFERENCES is:The perimeter of a shape is the length around its:A square of side a has perimeter:An equilateral triangle of side a has perimeter:A rectangle of length a and width b has perimeter:The perimeter of a circle is called its:The ratio of a square's perimeter to its side is always:The circumference of a circle of diameter d is:In terms of radius r, the circumference is:The ratio of circumference to diameter is the same for:Who introduced the Greek symbol for this ratio in 1706?A triangle has base b and height h. Its area equals:Two congruent triangles fitted together make a:The semi-perimeter of a triangle is:For a triangle of sides 3, 4 and 5, the semi-perimeter is:Using Heron's formula, the area of the 3, 4, 5 triangle is:Heron's formula finds a triangle's area from its:Who found a formula for the area of a cyclic quadrilateral?Which shapes are always cyclic?The length of a semicircle of radius r is:An arc's length depends on the angle it subtends at the: