<p> Find the length of the third side, `p`.</p> <p> Then find the area of the triangle.</p><RightAngleTriangleV2 data-props='{ "options": { "cell_size": 30, "padding_right": 50, "padding_left": 50, "padding_top": 10, "padding_bottom": 20, "rotation": 180 }, "height": { "value": 12, "label_text": "12", "offsetY": 20, "offsetX": 0 }, "base": { "value": 5, "label_text": "p", "offsetY": 30, "offsetX": 0 }, "hypotenuse": { "value": 13, "label_text": "13", "offsetY": 30, "offsetX": -10, "rotation": 0 }, "rightAngle": { "show": true, "color": "black" }, "backgroundColor": "#F2F2F6","encloseInBox": true }'></RightAngleTriangleV2 >