[amp_mcq option1=”A square of side 10 cm.” option2=”A rectangle of sides 12 and 9 cm.” option3=”A circle of radius 7 cm.” option4=”A rhombus of sides 9 cm.” correct=”option1″]<\/p>\n
The correct answer is (a). A square of side 10 cm has a perimeter of $4 \\times 10 = 40$ cm. A rectangle of sides 12 and 9 cm has a perimeter of $2 \\times 12 + 2 \\times 9 = 42$ cm. A circle of radius 7 cm has a perimeter of $2 \\pi r = 2 \\pi \\times 7 = 44$ cm. A rhombus of sides 9 cm has a perimeter of $4 \\times 9 = 36$ cm. Therefore, the square has the longest perimeter.<\/p>\n
A square is a four-sided figure with all sides of equal length and all angles of equal measure (90 degrees). A rectangle is a four-sided figure with opposite sides of equal length and opposite angles of equal measure. A circle is a round figure with all points on the circumference equidistant from the center. A rhombus is a four-sided figure with opposite sides of equal length and opposite angles of equal measure, but the angles at the vertices need not be 90 degrees.<\/p>\n
The perimeter of a figure is the total length of all its sides. The perimeter of a square is $P = 4s$, where $s$ is the side length. The perimeter of a rectangle is $P = 2l + 2w$, where $l$ is the length and $w$ is the width. The perimeter of a circle is $P = 2\\pi r$, where $r$ is the radius. The perimeter of a rhombus is $P = 4a$, where $a$ is the side length.<\/p>\n
In this case, the square has a side length of 10 cm. The rectangle has a length of 12 cm and a width of 9 cm. The circle has a radius of 7 cm. The rhombus has a side length of 9 cm.<\/p>\n
The perimeter of the square is $P = 4 \\times 10 = 40$ cm. The perimeter of the rectangle is $P = 2 \\times 12 + 2 \\times 9 = 42$ cm. The perimeter of the circle is $P = 2\\pi \\times 7 = 44$ cm. The perimeter of the rhombus is $P = 4 \\times 9 = 36$ cm.<\/p>\n
Therefore, the square has the longest perimeter.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”A square of side 10 cm.” option2=”A rectangle of sides 12 and 9 cm.” option3=”A circle of radius 7 cm.” option4=”A rhombus of sides 9 cm.” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-847","post","type-post","status-publish","format-standard","hentry","category-geometry","no-featured-image-padding"],"yoast_head":"\n