Measure It
身近なものを実際の数字で · 周長・面積・体積・半径を計算しよう。
About Measure It
Measure It is geometry with real objects and real numbers. A pizza is 30 cm across · what is its circumference? A door is 90 × 200 cm · what is its area? A football is 22 cm in diameter · what is its volume? Each round gives you the data and one question; pick the right calculation and keep your streak alive.
Choose what to study. The start-screen picker selects the quantities you want to practise · perimeter & circumference, area, volume, radius & diameter · in any combination. Each selection keeps its own best streak, so you can drill one formula or mix them all.
Wrong answers teach. The distractors are the classic mistakes (forgot π, used the diameter as the radius, computed the area instead of the perimeter), and every reveal shows the worked formula · so a missed round is a one-line geometry lesson, not just a reset.
Part of the PlayMemorize family of brain-training games.
FAQ
Q: What is Measure It?
A geometry calculation game built on real objects: pizzas, doors, footballs, soda cans. Each round gives real dimensions and asks for the circumference, perimeter, area, volume, radius or diameter. One wrong answer ends the streak.
Q: Which formulas does it cover?
Circle circumference and area (C = π × d, A = π × r²), rectangle and square perimeter and area, and the volumes of boxes, cubes, spheres (4⁄3 × π × r³) and cylinders (π × r² × h). The radius topic also runs the inverse problem · recover the diameter from the circumference.
Q: Can I practise just one quantity?
Yes. The "what to study" picker on the start screen lets you select any combination of perimeter & circumference, area, volume, and radius & diameter. Rounds are generated only from what you selected.
Q: How precise do answers need to be?
Calculations use π and the answers are rounded to friendly numbers (whole centimetres, one decimal for small values). The choices differ by genuine formula mistakes rather than rounding noise, so estimating with π ≈ 3.14 is always enough.
Q: Can I print it as a worksheet?
Yes. Measure It supports the printable worksheet generator at /worksheets · each problem prints the object, its dimensions and lettered numeric choices with an answer key, ready for a maths classroom.
