Some folks have been waiting for this day for years — for Alice Perkins, it’s been 99 years to be exact. “It’s a dream come true to be here and enjoy ourselves with so many people,” said ...

Save guides, add subjects and pick up where you left off with your BBC account. A scalene triangle has 3 sides of different lengths and 3 unequal angles. An isosceles triangle has 2 sides of equal ...